EP 0260997 B1 19940316 - Improvements in and relating to the processing of video image signals.
Title (en)
Improvements in and relating to the processing of video image signals.
Title (de)
Verarbeitung von Videobildsignalen.
Title (fr)
Traitement de signaux d'image vidéo.
Publication
Application
Priority
GB 8622611 A 19860919
Abstract (en)
[origin: EP0260997A2] IMPROVEMENTS IN AND RELATING TO THE PROCESSING OF VIDEO IMAGE SIGNALS A storage and interpolation device for digital television pictures comprises a memory organised in 'tiles' of memory elements (2). Sub-assemblies of tiles (2A,2B, 2C,2D) all have the same coordinate address in one coordinate direction and have outputs coupled to an interpolation filter (6) operative in that direction. Individual tiles (2A;2B;2C;2D) of respective sub-assemblies (1A,1B,1C,1D) all have the same coordinate address in the other coordinate direction and the outputs of the filters (6) of the sub-assemblies are connected to inputs of a further filter (9) operative in the other coordinate direction. By allocating pixel values of discrete image areas of the picture to respective sub-assemblies (1A,1B1C,1D) in the horizontal direction and to groups of tiles (2A,2B,2C,2D) in the vertical direction, interpolation can be effected by addressing all tiles simultaneously to produce a corresponding output from the filter 9.
IPC 1-7
IPC 8 full level
G06T 1/60 (2006.01); H04N 5/262 (2006.01)
CPC (source: EP US)
G06T 1/60 (2013.01 - EP US); H04N 5/262 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0260997 A2 19880323; EP 0260997 A3 19910109; EP 0260997 B1 19940316; DE 3789341 D1 19940421; DE 3789341 T2 19940818; GB 8622611 D0 19861022; US 4847691 A 19890711
DOCDB simple family (application)
EP 87308356 A 19870921; DE 3789341 T 19870921; GB 8622611 A 19860919; US 14860988 A 19880126